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Joel Stewart Email & Phone Number

LeagueOS at LeagueOS
Location: St Paul, Minnesota, United States 8 work roles 1 school
1 work email found @oj20.com LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email j****@oj20.com
LinkedIn Profile matched
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Current company
Role
LeagueOS
Location
St Paul, Minnesota, United States

Who is Joel Stewart? Overview

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Quick answer

Joel Stewart is listed as LeagueOS at LeagueOS, based in St Paul, Minnesota, United States. AeroLeads shows a work email signal at oj20.com and a matched LinkedIn profile for Joel Stewart.

Joel Stewart previously worked as Co-Founder, CTO at Leagueos and Founder / Lead Engineer at Code Inversion. Joel Stewart holds Bs, Computer Science from Bethel University.

Company email context

Email format at LeagueOS

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{first}@oj20.com
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AeroLeads found 1 current-domain work email signal for Joel Stewart. Compare company email patterns before reaching out.

Profile bio

About Joel Stewart

I'm an Engineer, Entrepreneur, Leader, Planner, Speaker, Tinkerer.I love starting, iterating, finishing, learning from and teaching others.Specialties: All things mobile. Apps and Games are my core. I can architect scalable cloud infrastructure. I've managed and contributed to full physical product development (industrial design, mechanical and electrical engineering, manufacturing, Apple MFi, retail, logistics, etc.). Complete software lifecycle understanding: acquisition, retention, monetization and more.Let's build something awesome!

Listed skills include Mobile Devices, Mobile Applications, Game Development, Iphone, and 45 others.

Current workplace

Joel Stewart's current company

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LeagueOS
Leagueos
LeagueOS
AeroLeads page
8 roles

Joel Stewart work experience

A career timeline built from the work history available for this profile.

Co-Founder, Cto

Current

Minneapolis, Mn, Us

Aug 2016 - Present

Founder / Lead Engineer

Code Inversion

Code Inversion is everything mobile:- iOS and Android Development- Strategy, UX and UI- Mobile Games- Native Applications- iBeacon / BLE Technology- SaaS Platforms- Backend Infrastructure- Cross-platform Solutions- Apple MFi Support- IP Consulting- Hardware / Accessories Design- ... and more

Feb 2012 - Dec 2021

Community Founder

Mnstarter
Jun 2016 - Dec 2018

Co Founder / Cto

Filter8

Filter8 is a Natural Language Filtering Service targeted at App developers who need to protect their users and their brand. Powered by the industry-leading Cleanspeak engine, it makes enterprise-level filtering and moderation a financial possibility for smaller independent studios and developers.

Jan 2013 - May 2015

Vp Of Engineering

Minneapolis, Mn, Us

At Canopy, I led the entire engineering effort to research, prototype and develop Sensus and all of the ancillary software systems to support a large community of developers and millions of iPhone users. - Assisted in conceptualizing and setting the roadmap for the Industrial Design- Assisted in the selection of materials to ensure proper sensitivity, durability and more- Evaluated and selected the primary electrical components that would meet our needs and pass Apple's MFi requirements- Led contractors and eventually the internal team to write the device's firmware, providing the feature roadmap and code review- Worked with component suppliers to identify component lead times and ensure inventory for prototypes- Worked in-person with Apple's MFi Team, Accessory Department, MFi Accessibility engineers, 3rd Party App Support team, Editorial Staff and International Retail Team to coordinate the on-boarding of 3rd Party Developers into the Sensus MFi Product Plan, strategize the retail launch, identify potential problems in the MFi certification process, push for new features in the Accessibility APIs of IAP2, package design and more.- Wrote the iOS Sensus SDK which is distributed to hundreds of 3rd party developers for integration into their existing and upcoming apps and games- Wrote numerous iOS Apps to demonstrate Sensus integration in camera apps, games, maps, readers and more.- Successfully coordinated with 3rd party developers to help them integrate the SDK into their games and apps without having HDKs available- Developed custom fingerprinting technology to support deep analytics and a recommendation engine for the Sensus community.- Architected a scalable BaaS to support millions of users on launch day, built on Azure and other 3rd party services- Much, much more...

Jul 2012 - May 2014

Co-Founder And Cto

Gray Squid Division

Mobile Game Studio.Mobile Strategy, Consultation and Development.SaaS Platforms.

Feb 2012 - Aug 2012

Engineering Lead

Wilson, Nc, Us

MMO game development.EUP Middleware ("MMO in a box").Scalable Cloud based 3D Avatar Rendering for Flash.Tools for MMO world and content creation and integration.Tools for realtime observation and moderation of MMOs.Worked on projects for Ubisoft, NHL, MTV, Neopets, American Girl, Faraway Friends and more.Led large engineering, art and QA teams for multi-million dollar MMO projects.

Jul 2008 - Jan 2012

Software Engineer

Plymouth, Mn, Us

Multiplayer, Gameplay, Networking, Animation and Core Engine Engineer.Worked on Military FPS for Consoles and PC.Directly responsible for numerous multiplayer deliverables for government agencies.

Jun 2006 - Jun 2008
1 education record

Joel Stewart education

  • Bethel University
    Bethel University
    Computer Science
FAQ

Frequently asked questions about Joel Stewart

Quick answers generated from the profile data available on this page.

What company does Joel Stewart work for?

Joel Stewart works for LeagueOS.

What is Joel Stewart's role at LeagueOS?

Joel Stewart is listed as LeagueOS at LeagueOS.

What is Joel Stewart's email address?

AeroLeads has found 1 work email signal at @oj20.com for Joel Stewart at LeagueOS.

Where is Joel Stewart based?

Joel Stewart is based in St Paul, Minnesota, United States while working with LeagueOS.

What companies has Joel Stewart worked for?

Joel Stewart has worked for Leagueos, Code Inversion, Mnstarter, Filter8, and Canopy Co.

How can I contact Joel Stewart?

You can use AeroLeads to view verified contact signals for Joel Stewart at LeagueOS, including work email, phone, and LinkedIn data when available.

What schools did Joel Stewart attend?

Joel Stewart holds Bs, Computer Science from Bethel University.

What skills is Joel Stewart known for?

Joel Stewart is listed with skills including Mobile Devices, Mobile Applications, Game Development, Iphone, Ios Development, Software Engineering, Objective C, and Video Games.

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